<abstract xmlns="http://www.w3.org/1999/xhtml">

<p>The initialization of the <italic>Strumok</italic> cipher is analyzed in this paper. A modified cipher initialization procedure is constructed for the <italic>Strumok-512</italic> cipher, which allows to show that the cipher initialization is not injective. Security against slide attacks is proved. Furthermore, the Guess-and-Determine attack on the <italic>Strumok-512</italic> cipher is constructed with complexity 2<sup>448</sup>.</p>
</abstract>

The initialization of the Strumok cipher is analyzed in this paper. A modified cipher initialization procedure is constructed for the Strumok-512 cipher, which allows to show that the cipher initialization is not injective. Security against slide attacks is proved. Furthermore, the Guess-and-Determine attack on the Strumok-512 cipher is constructed with complexity 2448.

Cryptanalysis of Strumok Cipher Initialization

Tatra Mountains Mathematical Publications

This work is licensed under the Creative Commons Attribution-NonCommercial-NoDerivatives 4.0 International License.

{"article-title":"Cryptanalysis of Strumok Cipher Initialization"}

The initialization of the Strumok cipher is analyzed in this paper. A modified cipher initialization procedure is constructed for the Strumok-512 cipher, which...

Cryptanalysis of Strumok Cipher Initialization

Published Online: May 29, 2024

Page range: -

Received: Sep 30, 2022

Accepted: Dec 18, 2023

DOI: https://doi.org/10.2478/tmmp-2024-0009

Keywords
Strumok cipher, Guess-and-Determine attack, initialization attack

© 2024 Andrii Fesenko, published by Sciendo

This work is licensed under the Creative Commons Attribution-NonCommercial-NoDerivatives 4.0 International License.

Cryptanalysis of Strumok Cipher Initialization

Published Online: May 29, 2024

Page range: -

Received: Sep 30, 2022

Accepted: Dec 18, 2023

DOI: https://doi.org/10.2478/tmmp-2024-0009

KeywordsStrumok cipher, Guess-and-Determine attack, initialization attack

© 2024 Andrii Fesenko, published by Sciendo

This work is licensed under the Creative Commons Attribution-NonCommercial-NoDerivatives 4.0 International License.

Keywords
Strumok cipher, Guess-and-Determine attack, initialization attack